Type-wheel-aligning device for marking machines



I 1,644 144 1927' R. OSBORNE ET AL TYPE WHEEL ALIGNING DEVICE FORMARKING MACHINES Filedoc t. 19. 1926 f afn'uprrior. W? M;

Patented Oct. 4, 1927.

- UNITED STATES 1,644,144 PATENT OFFICE;

RAYMOND OSBORNE AND CHARLES E. MILLER, or CIN INNATI, oIIIo, ASSIGNORSTO THE NATIONAL MARKING MACHINE COMPANY; or CINCINNATI, OHIO, A CORPORA-T-ION OF OHIO.

TYPE-WHEEL-ALIGN'ING DEVICE FOR MARKING MACHINES. I

Application filed October 19, 1926. [serial Nof1'42, ss1.

Our invention relates to that class of marking machines illustrated anddescribed in the Jatent to Chester-V. Canine, lssued functions of themarking machine as a whole..

Our object isg-to provide simple, durable and inexpensive means forautomatically aligning the type imprinting position upon the varioustype bearing wheels, sothat when a printing operation is effected thetype will all be in line.

More specifically it is our object. to provide a-series of springs whichmay be readily, quickly and easily applied, and in which the tension maybe readily, quickly and easily adjusted to suit the requirements,springs are designed to engage the toothed pinions which in turn engagethe type bearing wheels, and whereby when thepinions are actuated tomove the type bearing wheels to printing position, the springs willauto;

" mati'cally move the said pinions to proper positions for aligning thetype and automatically holding them in such position during the printingoperation.

Our invention consists in the construction, arrangement and combinationof the various parts of the device, whereby the objects contemplated areattained, as hereinafter more fully set forth, pointed out in ourclaims, and illustrated in the accompanying drawings, in which:

Figure 1 shows a side view illustrating a part of a laundry markingmachine of the ordinary construction with our improvement appliedthereto, parts of the frame being broken away to show our improved typealigning device.

Figure 2.shows a top or plan view illustrating a groupof the toothedpinions having our improved aligning device applied thereto.

Figure 3 shows an enlarged, detail, sectional view through our improvedaligning device, and illustrating a portion of the toothed pinionengaged by one of the springs of the aligning device.

Figure 4 shows an enlarged, detail, perspective view of one of thesprings of our im 'roved ali ning device; and

Figure 5 s ows an enlarged, detail, perwhich spective view illustratingthe shaft upon which the aligning springs are mounted.

Y Referring to theaccompanying drawings, we have used the referencenumeral 10 to indicate generally the frame of'a printing machine havingthereon" astationary platen 1 11. Pivotallymounted on the frame 10 uponthe shaft 12 is a tilting printing frame 13 having mounted therein ashaft 14.. Loosely v mounted upon this shaft is a series of type CllSkS15, each in the form of a'toothed pinion with the type at the peripheryof the teeth (in the draw ng'only one of these disks 15 is shown).Adjacent to the shaftl l is a secondshaft- 16, and loosely mounted onthis shaft16 is a series of-toothed pinions 17 in mesh with the toothedpinionsof the corresponding type "disks'15. For each of the toothedpinions 17 there is a segmental rack 18 fulcrumed. in the frame 13 andin mesh with the corresponding pinions 17. These parts are all soarranged that when any segmentalrack 18 is moved the pinion 17 in meshwith it will be correspondingly moved, and the type disk 15 in mesh withthe said pinion will be correspondingly moved to bring the selected typeto printing position. Our improved type aligning device comprises ashaft 19 mounted in the frame 13, preferably above the row of toothedpinions 17. This shaft has at-one end a slot 20 to receive a screwdriven and it also has through its body portion a series of slots 21preferably formed in the top surface of the shaft 1 and extendedtransversely of "the shaft. The slots are spaced apart leaving theartit-ions 22 between them.

ounted in the frame 13 adjacent to the ends of the shaft 19 are setscrews 23 by which the shaft may be locked in any positionof'its'adjustment. v, The spring type aligning devices are each composedof a single piece of spring metal comprising a body portion 24, havingat the outer end a curved tooth engaging member 25, and atthe other endthe spring is formed into a nearly complete circle 26. [The end of 7spring sh uld be om ro e as spring is separately applied tot-he shaft19. The top portion of the part 24, as shown in Figure l, is placedagainst the round portion of the shaft 19 cdirectly beneath the slot 21,with the flattenedend27gof the spring substantially parallel with thebottom of tne slot. Then the spring is moved relative to the shaft untilitscircular portion'26 is substantially concentric with the surface ofthe shaft, after which-the spring is turned approximately one-halfrevolution on the shaft until thejinwardly curved portion 28 of thespring lies within the outer surface of the corresponding slot 21, andwhen in this position, as clearly shown in Figure 3, the part 28 restswithin the walls ofthe slotand-engagesthe sides or partitions 22.

Whenall of thesprings hav'ebeen thus applied, then the shaft 19 isturned bya screw Quiver; in the screw slot 20 until the proper tensionof thesprings'is appliedto the toothed pinions' 1-7, whereupon thesetscrew 23 is'tightened to lock the shaft 19 in position, 'forapplying theproper spring ten- S1011. 'Obvi'ouslygin the event that'by'reason ofwear or for other causes, the spring tension should'be either too greator too slight, the operator may quickly and easily readjust the tensionof" the springs by first re leasing the set screw 23 and then turn theshaft--19 to apply the proper degree of tension, and then again, lockthe shaft in'its'readjusted, position by means of ,the set screwAttention is called to the fa'ctfthat all of the parts'ofthis-aligningdevice-are of extremely simple and inexpensive construe-- tion and maybereadily, quickly and easily applied and'adjusted. v 1

Furthermora the curved portions 25 of the s'prings are always helddirectly in alignment with the central portions of the teeth ofthepinions l7, by reasonof the fact that thefpoi'tion 28 of ear-2hspring is held against lateral movement by its engagement with the sidewalls of the slots. vents the free ends of the springs from movinglaterally and possibly engaging other thanthe toothed pinions 17 forwhich each spring is designed, and for the reason {that these toothedpinions 17 work independently, this feature isof great advantage.

Another advantage 015 our v improvement is that-the's'prings are "whellyindependent of;eacl1.otl1 fer, and. in the even i at any airliner applythe proper degree of ten ion to its 'e' PQnd ng' t othe pinion; i myibfl lnoved rea'diIyI aid' easily and bent-"to 1 proper This p'reposition,ora new one-may be substituted therefor, which, obviously, is notpossible if the springs were all made of one piece of metal. Weshavefound that-it -is,impractical-to form all of these springs of a singlepiece of metal and obtain the propertension of each spring with relationto its corre sp'onding'toothedpinion.

We claim as our invention: 1. A type aligning device for markingmachines, comprising in combination a series of pinions'having type uponthe periphery means foradjusting the tension of said spring arms. i

2. Atype aligning device for marking ma chines, comprising incombination a series of pinions having type upon the periphery of theteeth, a corresponding series ,of toothed pin'ions in mesh withtlie't-ype bearing pinions, a shaft rotatively mounted ad:

jface'nt to the toothed p'inions and formed with a series of slotsextended 'transversely' and spaced apartfrom each other'and eX- tendingfrom-the periphery of the shaft at one edgeto apoint approaching thecenter of the edge, means for locking the shaft against rotation, and aseries of spring arms, each comprising a body portion, an outer endportion shapedto enter between two teeth of the corresponding toothedpinion, the other end of each spring arm being curved into a nearlycomplete circle with its end projected inwardly toward'therenter of thecircle and being also formed wit-ha portion of this circle projectedinwardlyloward the center of the circle, said parts be ing so arrangedthat when assembled the rounded portion of the circle will engage therounded portion ofthe shaft opposite from the slot, the inwardlyextended' end portion will engagejthe shaft at the bottom o'f-theslotand the inwardlyextended por tion of the circle 'will enter betwee thesides of 'the'slo't and the wa'llsbetween the slots, substantially asand fertile purpeses stated. 2

Des -h ioines ,lowa, October 6, 1.926.

a io Bo N "CHARLES "r. MILLER.

